85727191479 has 16 divisors (see below), whose sum is σ = 118320924000. Its totient is φ = 55145010816.

The previous prime is 85727191447. The next prime is 85727191483. The reversal of 85727191479 is 97419172758.

It is not a de Polignac number, because 85727191479 - 2⁵ = 85727191447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85727191409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183304 + ... + 452829.

It is an arithmetic number, because the mean of its divisors is an integer number (7395057750).

Almost surely, 2^85727191479 is an apocalyptic number.

85727191479 is a deficient number, since it is larger than the sum of its proper divisors (32593732521).

85727191479 is a wasteful number, since it uses less digits than its factorization.

85727191479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637714.

The product of its digits is 8890560, while the sum is 60.

The spelling of 85727191479 in words is "eighty-five billion, seven hundred twenty-seven million, one hundred ninety-one thousand, four hundred seventy-nine".